Omer - Cooper, J., & Ayandele, E. (1968). The growth of African civilization: The making of modern Africa. Longman group.
Chicago-viite (17. p.)Omer - Cooper, J.D, ja E.A Ayandele. The Growth of African Civilization: The Making of Modern Africa. London: Longman group, 1968.
MLA-viite (9. p.)Omer - Cooper, J.D, ja E.A Ayandele. The Growth of African Civilization: The Making of Modern Africa. Longman group, 1968.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.